WALT: Read and Write Decimal numbers

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SUCCESS CRITERIA:

• Accurately state the value of each digit in a decimal number
• Accurately expand decimal number using words

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The place of a digit tells you its value

Fill in the Place Value Chart

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1. Tom swam a length of the pool in 30.42 seconds
2. Angel ran 100m in 15.89 seconds
3. The bike track record for Year 7s is 44.271 seconds
4. The bike track record for Year 8s is 42.940 seconds

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Decimals in Expanded Form (words)

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EXAMPLE: 3.45 = three ones, four tenths and five hundredths

1. 5.7 =
2. 3.29 =
3. 0.83 =
4. 34.09 =
5. 0.072 =
6. 20.594 =

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Decimals in digits (numbers)

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EXAMPLE: three point four five = 3.45

1. four point zero seven =
2. eighty-two point four six nine =
3. fifty point zero two =
4. three point zero zero four =
5. eighteen thousand point six two =
6. forty five point nine zero zero

Write as Decimals

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EXAMPLE: nine tenths = .9

• five hundredths =
• eight tenths and five hundredths =
• nine thousandths =
• five tenths and two hundredths =
• four tenths and seven hundredths and three thousandths =
• two tenths and six thousandths =

CHALLENGE!

Rewrite each number using a decimal point so that the value of the 5 is 5 tenths�HINT: Look back at Slide 2 with the place value houses

1. 852 →
2. 365 →
3. 79652 →
4. 5321 →
5. 600509 →
6. 637521 →

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